View Full Version : Do you spray your gaskets before putting them on?
Onefast99gsx
05-08-2007, 09:25 PM
I was just about ready to put the front cover on. I have Mitsu OEM gaskets. Should I spray them with any gasket adhesive or just leave them as-is bolt the cover on?
Thanks
I only spray the HG myself.
Onefast99gsx
05-08-2007, 09:34 PM
Thanks JET, one last question before I bolt it on. I put the front cover gasket up against the block. I noticed there is various overhang in spots where there isn't even anything behind the gasket. Is this ok or am i supposed to trim it. This area in the picture on the right side of the crankshaft is at least 1/2 to 3/4" of overhang without any engine metal behind it.
Thanks!!!
Onefast99gsx
05-08-2007, 10:21 PM
Well regardless of my last post, I bolted the front cover on shortly ago. I figured it would be stupid if you had to trim the gaskets. The cover went on nice. I coated all around the front main with vaseline and she slid right on.
Swifty1638
05-08-2007, 11:48 PM
Overhang won't hurt. As long as all the ports are open, and whatnot it will be ok. Copperspray the HG, as long as it's a non metal one. Also, hi-temp paint works too.
-A. Swift
Onefast99gsx
05-09-2007, 12:05 AM
Well I just had the front cover sitting up against the block. I pulled it back off and sprayed a very light coat with my Copper Spray that I used on the HG a year ago. I did it just to be safe because there might have been a couple spots that I scratched the aluminum with a razor blade when I took old gasket material off. I'm sure it would have sealed just fine without the spray, I just needed piece of mind on this so I could move on. Rod bolts should be here Thurs. Once pistons are back in with the new bolts I can seal up the bottom end with the oil pan and then I'm off to an area that I'm comfortable with. This bottom end has been taking way too long but I've been extremely careful plus I've been taking pics along the way for reference.
Tomorrow or Thurs i'll put the B.shaft belt on. I suppose I'll spend an hour on that just figuring out if I have the right tension on it. The book calls for 5-7mm (.20 - .28") of deflection.
Thanks for all the help.
Pushit2.0
05-09-2007, 09:51 AM
Copper spray on gaskets like that keep it thin and let it dry for a while befor tighting it down, or the gasket might push out. Copper spray should be tacky/dry befor final torque on any gasket.
~John
Onefast99gsx
05-09-2007, 11:12 AM
Hello John, I sprayed it on very thin just enough to change the color of the gasket, basically a mist. I let it tack up for a minute and then put the front cover on. I didn't noticed any pushing of the gaskets but what you said is good for future reference.
Thanks for the help and advice.
Onefast99gsx
05-09-2007, 11:06 PM
Rather than starting a new thread, I'll just post in this one. I'm just going through all the bolt and plugs on my motor during assembly. I did have new balance shaft bearings put in. Can anyone tell me what these 2 screw in plugs are for. I took the plug out and tapped in there with small screwdriver and it seems like it is the back side of the balance shaft bearing. It doesn't go all the way through. In otherwards, It's a hole that goes nowhere. When the machine shop put the bearing was this hole supposed to line up with a hole on the bearing?
Onefast99gsx
05-10-2007, 08:13 AM
While researching for something else, I found my answer.
" Note the screw in plug on the left (circled) - that is to allow the factory to drill the oilfeed hole from the bearing journal into the oil galley."
Looks like it's just a one time use thing when they made the blocks. The oil holes would be directly across from these screw in plugs.
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